El Chapin Weather Records (MXN00011124)

Record envelope, standing records and threshold days for El Chapin (MXN00011124), Mexico, with 37 years of record.

Key Facts for El Chapin

El Chapin (MXN00011124) is a weather station in Mexico at 20.87 latitude and -101.23 longitude, 1,853 m (6,079 ft) above sea level.
The station reports from 1977 to 2013, 37 years of record.
1,464 records set at El Chapin still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
El Chapin tied a daily record high maximum temperature of 35.0 C (95.0 F) on 18 April 2013.

About the Station

Location: Mexico, 20.87 latitude, -101.23 longitude.
Elevation: 1,853 m (6,079 ft).
Period of record: 1977 to 2013, 37 years.
Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at El Chapin. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at El Chapin, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	33.3 C (91.9 F)	-0.6 C (30.9 F)	n/a	n/a
Feb	35.0 C (95.0 F)	-2.8 C (27.0 F)	n/a	n/a
Mar	33.3 C (91.9 F)	0.6 C (33.1 F)	n/a	n/a
Apr	36.1 C (97.0 F)	3.9 C (39.0 F)	n/a	n/a
May	38.3 C (100.9 F)	4.4 C (39.9 F)	n/a	n/a
Jun	36.7 C (98.1 F)	8.9 C (48.0 F)	n/a	n/a
Jul	33.3 C (91.9 F)	9.4 C (48.9 F)	n/a	n/a
Aug	32.2 C (90.0 F)	9.4 C (48.9 F)	n/a	n/a
Sep	31.7 C (89.1 F)	6.1 C (43.0 F)	n/a	n/a
Oct	32.2 C (90.0 F)	0.6 C (33.1 F)	n/a	n/a
Nov	33.3 C (91.9 F)	-4.4 C (24.1 F)	n/a	n/a
Dec	32.2 C (90.0 F)	-3.3 C (26.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at El Chapin still stand. 1980 holds the most, with 112.

Standing records at El Chapin by the year they were set
Year set	Standing records
1977	30
1978	40
1979	81
1980	112
1981	45
1982	60
1983	55
1984	29
1985	39
1986	46
1987	51
1988	53
1989	37
1990	36
1991	52
1992	43
1993	23
1994	28
1995	36
1996	22
1997	44
1998	30
1999	23
2000	26
2001	28
2002	54
2003	30
2004	38
2005	31
2006	39
2007	16
2008	28
2009	35
2010	49
2011	39
2012	26
2013	10

All-Time Record Progression

3 new records

3 all-time records were set at El Chapin between 4 February 2010 and 29 November 2011. Each dot is a new record.

When El Chapin set new all-time records
Date	Kind	Detail
2010-02-04	Record daily precipitation	Record daily precipitation 97.8 mm (3.9 in)
2011-09-02	Record daily precipitation	Record daily precipitation 99.8 mm (3.9 in)
2011-11-29	Record low minimum temperature	Record low minimum temperature -4.4 C (24.1 F)

Wettest Day of Each Month

Sep: 99.8 mm (3.9 in)

The wettest day on record for each calendar month at El Chapin. The most was 99.8 mm (3.9 in) on 2 September 2011.

Record daily precipitation for each month at El Chapin
Month	Record daily precipitation (mm)	Date
Jan	46.5 mm (1.8 in)	23 January 1980
Feb	97.8 mm (3.9 in)	4 February 2010
Mar	33.8 mm (1.3 in)	14 March 2005
Apr	32.3 mm (1.3 in)	14 April 1981
May	49.8 mm (2.0 in)	15 May 1978
Jun	74.9 mm (2.9 in)	25 June 2009
Jul	71.4 mm (2.8 in)	30 July 2007
Aug	80.8 mm (3.2 in)	23 August 2008
Sep	99.8 mm (3.9 in)	2 September 2011
Oct	79.0 mm (3.1 in)	9 October 1997
Nov	23.4 mm (0.9 in)	26 November 1986
Dec	29.5 mm (1.2 in)	3 December 1979

Period of Record Coverage

1977 to 2013

37 years of record at El Chapin, 1977 to 2013. 2 years have data for under 90 percent of days and are left out of rankings: 1977, 2013.

Days with data per year at El Chapin
Year	Days with data	Share of year	Complete
1977	135	37%	No
1978	363	99%	Yes
1979	365	100%	Yes
1980	365	100%	Yes
1981	334	92%	Yes
1982	365	100%	Yes
1983	364	100%	Yes
1984	365	100%	Yes
1985	365	100%	Yes
1986	365	100%	Yes
1987	365	100%	Yes
1988	364	99%	Yes
1989	365	100%	Yes
1990	365	100%	Yes
1991	365	100%	Yes
1992	364	99%	Yes
1993	364	100%	Yes
1994	365	100%	Yes
1995	365	100%	Yes
1996	366	100%	Yes
1997	365	100%	Yes
1998	365	100%	Yes
1999	365	100%	Yes
2000	365	100%	Yes
2001	365	100%	Yes
2002	365	100%	Yes
2003	365	100%	Yes
2004	366	100%	Yes
2005	364	100%	Yes
2006	365	100%	Yes
2007	365	100%	Yes
2008	366	100%	Yes
2009	365	100%	Yes
2010	365	100%	Yes
2011	365	100%	Yes
2012	366	100%	Yes
2013	120	33%	No

Latest Records

Latest records at El Chapin
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 April 2013	El Chapin, MX	daily high max (Tie)	35.0 C (95.0 F)	tie	12 years	1 of 100 (Routine)
15 April 2013	El Chapin, MX	monthly low min (Tie)	3.9 C (39.0 F)	tie	21 years	4 of 100 (Routine)
14 April 2013	El Chapin, MX	monthly low min (Tie)	3.9 C (39.0 F)	tie	21 years	4 of 100 (Routine)
13 April 2013	El Chapin, MX	daily low min (Tie)	5.0 C (41.0 F)	tie	24 years	2 of 100 (Routine)
31 March 2013	El Chapin, MX	daily high max	32.8 C (91.0 F)	0.6 C (1.1 F)	35 years	15 of 100 (Routine)
15 March 2013	El Chapin, MX	daily low max	17.2 C (63.0 F)	3.9 C (7.0 F)	20 years	24 of 100 (Routine)
14 March 2013	El Chapin, MX	daily low max	18.9 C (66.0 F)	1.1 C (2.0 F)	20 years	13 of 100 (Routine)
13 March 2013	El Chapin, MX	daily low max	18.3 C (64.9 F)	3.9 C (7.0 F)	24 years	25 of 100 (Routine)
5 March 2013	El Chapin, MX	monthly low min (Tie)	0.6 C (33.1 F)	tie	29 years	5 of 100 (Routine)
4 March 2013	El Chapin, MX	monthly low min (Tie)	0.6 C (33.1 F)	tie	29 years	5 of 100 (Routine)
3 March 2013	El Chapin, MX	daily low min (Tie)	1.7 C (35.1 F)	tie	15 years	1 of 100 (Routine)
1 March 2013	El Chapin, MX	monthly low max (Tie)	16.7 C (62.1 F)	tie	34 years	5 of 100 (Routine)
21 January 2013	El Chapin, MX	daily high min	10.0 C (50.0 F)	0.6 C (1.1 F)	33 years	14 of 100 (Routine)
8 January 2013	El Chapin, MX	daily low max (Tie)	18.9 C (66.0 F)	tie	17 years	2 of 100 (Routine)
2 January 2013	El Chapin, MX	daily high min	10.6 C (51.1 F)	1.2 C (2.2 F)	9 years	9 of 100 (Routine)
11 December 2012	El Chapin, MX	daily low max	16.1 C (61.0 F)	4.5 C (8.1 F)	21 years	28 of 100 (Routine)
10 December 2012	El Chapin, MX	daily low max (Tie)	21.1 C (70.0 F)	tie	22 years	2 of 100 (Routine)
30 November 2012	El Chapin, MX	daily high max (Tie)	27.8 C (82.0 F)	tie	18 years	2 of 100 (Routine)
23 November 2012	El Chapin, MX	daily low max	20.6 C (69.1 F)	2.2 C (4.0 F)	20 years	18 of 100 (Routine)
5 November 2012	El Chapin, MX	daily low max	16.1 C (61.0 F)	3.9 C (7.0 F)	11 years	22 of 100 (Routine)

Climate Trend

34 complete years, 1978 to 2012

One stripe for each of 34 complete years at El Chapin, 1978 to 2012. Blue stripes are years cooler than the station's own mean of 18.5 C (65.3 F); red stripes are warmer. The coolest year was 2010, at 17.9 C (64.2 F), and the warmest was 1980, at 19.5 C (67.1 F). The strongest colour marks a difference of 1.0 C (1.8 F).

Annual mean temperature at El Chapin as warming stripes, 1978 to 2012
Year	Annual mean temperature	Difference from the station mean
1978	18.4 C	-0.08 C
1979	18.8 C	+0.33 C
1980	19.5 C	+1.00 C
1982	19.4 C	+0.84 C
1983	18.5 C	-0.06 C
1984	18.3 C	-0.22 C
1985	18.6 C	+0.04 C
1986	18.5 C	+0.03 C
1987	18.7 C	+0.22 C
1988	18.3 C	-0.24 C
1989	18.2 C	-0.28 C
1990	19.0 C	+0.44 C
1991	19.0 C	+0.52 C
1992	18.0 C	-0.56 C
1993	18.2 C	-0.31 C
1994	18.8 C	+0.33 C
1995	18.7 C	+0.15 C
1996	18.4 C	-0.12 C
1997	18.3 C	-0.23 C
1998	18.6 C	+0.09 C
1999	18.2 C	-0.35 C
2000	18.5 C	+0.03 C
2001	17.9 C	-0.60 C
2002	18.3 C	-0.21 C
2003	18.5 C	0.00 C
2004	18.1 C	-0.44 C
2005	18.9 C	+0.36 C
2006	18.8 C	+0.29 C
2007	18.3 C	-0.19 C
2008	18.0 C	-0.48 C
2009	18.8 C	+0.31 C
2010	17.9 C	-0.62 C
2011	18.7 C	+0.22 C
2012	18.4 C	-0.09 C

The fitted trend in annual mean temperature here over 1978 to 2012 is -0.1 C (-0.3 to 0.0) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.2 F (-0.5 to 0.0) per decade. The slope is a straight line fitted to 34 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at El Chapin
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	-0.1 C (-0.3 to 0.0) per decade	-0.2 F (-0.5 to 0.0) per decade	1978 to 2012	34	Not clearly different from zero
Mean daily maximum	0.1 C (-0.1 to 0.3) per decade	0.2 F (-0.2 to 0.5) per decade	1978 to 2012	34	Not clearly different from zero
Mean daily minimum	-0.3 C (-0.5 to -0.2) per decade	-0.6 F (-0.9 to -0.4) per decade	1978 to 2012	34	Fall

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1977 to 2013

Yearly extremes at El Chapin: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.3 C (100.9 F)	1980	35.0 C (95.0 F)	37
Coldest night (TNn)	-4.4 C (24.1 F)	2011	0.0 C (32.0 F)	37
Wettest day (Rx1day)	99.8 mm (3.9 in)	2011	50.3 mm (2.0 in)	37
Wettest five days (Rx5day)	189.6 mm (7.5 in)	2010	99.6 mm (3.9 in)	37
Longest dry spell (CDD)	159 days	1989	79 days	37

Hottest day (TXx)

The hottest day of the year at El Chapin, 1977 to 2013. The record is 38.3 C (100.9 F) in 1980, marked on the chart; the median year is 35.0 C (95.0 F).

Hottest day (TXx) at El Chapin by year
Year	Hottest day (TXx)
1977	31.7 C (89.1 F)
1978	35.0 C (95.0 F)
1979	34.4 C (93.9 F)
1980	38.3 C (100.9 F)
1981	34.4 C (93.9 F)
1982	36.1 C (97.0 F)
1983	36.7 C (98.1 F)
1984	33.9 C (93.0 F)
1985	35.0 C (95.0 F)
1986	33.9 C (93.0 F)
1987	34.4 C (93.9 F)
1988	35.0 C (95.0 F)
1989	35.0 C (95.0 F)
1990	34.4 C (93.9 F)
1991	35.0 C (95.0 F)
1992	35.6 C (96.1 F)
1993	35.6 C (96.1 F)
1994	35.0 C (95.0 F)
1995	35.0 C (95.0 F)
1996	35.0 C (95.0 F)
1997	35.0 C (95.0 F)
1998	36.7 C (98.1 F)
1999	35.0 C (95.0 F)
2000	36.1 C (97.0 F)
2001	35.6 C (96.1 F)
2002	36.1 C (97.0 F)
2003	37.2 C (99.0 F)
2004	33.9 C (93.0 F)
2005	36.7 C (98.1 F)
2006	35.0 C (95.0 F)
2007	35.0 C (95.0 F)
2008	36.1 C (97.0 F)
2009	37.2 C (99.0 F)
2010	36.1 C (97.0 F)
2011	37.2 C (99.0 F)
2012	35.0 C (95.0 F)
2013	35.0 C (95.0 F)

Coldest night (TNn)

The coldest night of the year at El Chapin, 1977 to 2013. The record is -4.4 C (24.1 F) in 2011, marked on the chart; the median year is 0.0 C (32.0 F).

Coldest night (TNn) at El Chapin by year
Year	Coldest night (TNn)
1977	3.9 C (39.0 F)
1978	0.6 C (33.1 F)
1979	0.6 C (33.1 F)
1980	2.2 C (36.0 F)
1981	0.0 C (32.0 F)
1982	1.1 C (34.0 F)
1983	-0.6 C (30.9 F)
1984	1.1 C (34.0 F)
1985	1.1 C (34.0 F)
1986	1.7 C (35.1 F)
1987	0.6 C (33.1 F)
1988	1.7 C (35.1 F)
1989	-3.3 C (26.1 F)
1990	0.6 C (33.1 F)
1991	0.6 C (33.1 F)
1992	0.0 C (32.0 F)
1993	0.0 C (32.0 F)
1994	1.7 C (35.1 F)
1995	0.6 C (33.1 F)
1996	0.0 C (32.0 F)
1997	-1.7 C (28.9 F)
1998	-2.8 C (27.0 F)
1999	0.0 C (32.0 F)
2000	0.0 C (32.0 F)
2001	0.0 C (32.0 F)
2002	0.0 C (32.0 F)
2003	-0.6 C (30.9 F)
2004	0.0 C (32.0 F)
2005	0.0 C (32.0 F)
2006	-0.6 C (30.9 F)
2007	1.1 C (34.0 F)
2008	0.0 C (32.0 F)
2009	-1.1 C (30.0 F)
2010	-0.6 C (30.9 F)
2011	-4.4 C (24.1 F)
2012	0.0 C (32.0 F)
2013	0.6 C (33.1 F)

Wettest day (Rx1day)

The wettest day of the year at El Chapin, 1977 to 2013. The record is 99.8 mm (3.9 in) in 2011, marked on the chart; the median year is 50.3 mm (2.0 in).

Wettest day (Rx1day) at El Chapin by year
Year	Wettest day (Rx1day)
1977	31.8 mm (1.3 in)
1978	66.8 mm (2.6 in)
1979	29.5 mm (1.2 in)
1980	46.5 mm (1.8 in)
1981	58.7 mm (2.3 in)
1982	47.5 mm (1.9 in)
1983	65.3 mm (2.6 in)
1984	53.3 mm (2.1 in)
1985	33.3 mm (1.3 in)
1986	84.8 mm (3.3 in)
1987	47.0 mm (1.9 in)
1988	45.0 mm (1.8 in)
1989	50.3 mm (2.0 in)
1990	58.4 mm (2.3 in)
1991	50.8 mm (2.0 in)
1992	37.3 mm (1.5 in)
1993	43.9 mm (1.7 in)
1994	65.8 mm (2.6 in)
1995	38.4 mm (1.5 in)
1996	42.4 mm (1.7 in)
1997	79.0 mm (3.1 in)
1998	46.5 mm (1.8 in)
1999	70.9 mm (2.8 in)
2000	23.9 mm (0.9 in)
2001	69.3 mm (2.7 in)
2002	46.5 mm (1.8 in)
2003	56.9 mm (2.2 in)
2004	58.4 mm (2.3 in)
2005	49.3 mm (1.9 in)
2006	38.9 mm (1.5 in)
2007	79.8 mm (3.1 in)
2008	80.8 mm (3.2 in)
2009	74.9 mm (2.9 in)
2010	97.8 mm (3.9 in)
2011	99.8 mm (3.9 in)
2012	37.8 mm (1.5 in)
2013	7.9 mm (0.31 in)

Wettest five days (Rx5day)

The wettest five days of the year at El Chapin, 1977 to 2013. The record is 189.6 mm (7.5 in) in 2010, marked on the chart; the median year is 99.6 mm (3.9 in).

Wettest five days (Rx5day) at El Chapin by year
Year	Wettest five days (Rx5day)
1977	71.8 mm (2.8 in)
1978	147.6 mm (5.8 in)
1979	50.6 mm (2.0 in)
1980	111.7 mm (4.4 in)
1981	87.4 mm (3.4 in)
1982	132.4 mm (5.2 in)
1983	114.9 mm (4.5 in)
1984	143.9 mm (5.7 in)
1985	97.9 mm (3.9 in)
1986	111.0 mm (4.4 in)
1987	74.9 mm (2.9 in)
1988	105.4 mm (4.1 in)
1989	75.7 mm (3.0 in)
1990	78.3 mm (3.1 in)
1991	111.4 mm (4.4 in)
1992	99.6 mm (3.9 in)
1993	97.1 mm (3.8 in)
1994	92.5 mm (3.6 in)
1995	93.8 mm (3.7 in)
1996	83.8 mm (3.3 in)
1997	115.6 mm (4.6 in)
1998	110.7 mm (4.4 in)
1999	92.3 mm (3.6 in)
2000	66.9 mm (2.6 in)
2001	137.9 mm (5.4 in)
2002	99.5 mm (3.9 in)
2003	165.3 mm (6.5 in)
2004	148.3 mm (5.8 in)
2005	71.7 mm (2.8 in)
2006	74.9 mm (2.9 in)
2007	140.0 mm (5.5 in)
2008	135.2 mm (5.3 in)
2009	150.4 mm (5.9 in)
2010	189.6 mm (7.5 in)
2011	185.9 mm (7.3 in)
2012	78.0 mm (3.1 in)
2013	11.1 mm (0.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at El Chapin, 1977 to 2013. The record is 159 days in 1989, marked on the chart; the median year is 79 days.

Longest dry spell (CDD) at El Chapin by year
Year	Longest dry spell (CDD)
1977	18 days
1978	49 days
1979	77 days
1980	49 days
1981	32 days
1982	79 days
1983	73 days
1984	69 days
1985	70 days
1986	70 days
1987	152 days
1988	77 days
1989	159 days
1990	79 days
1991	124 days
1992	42 days
1993	77 days
1994	107 days
1995	65 days
1996	84 days
1997	61 days
1998	158 days
1999	146 days
2000	139 days
2001	50 days
2002	56 days
2003	116 days
2004	44 days
2005	81 days
2006	85 days
2007	102 days
2008	98 days
2009	63 days
2010	100 days
2011	105 days
2012	81 days
2013	118 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Rainfall Return Levels

35 years, 1978 to 2012

A day with at least 53.7 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 114.5 mm (4.5 in) of rain is expected about once in 100 years.

Rainfall return levels at El Chapin: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	53.7 mm (2.1 in)
5 years	70.9 mm (2.8 in)
10 years	81.9 mm (3.2 in)
25 years	95.4 mm (3.8 in)
50 years	105.1 mm (4.1 in)	Longer than the 35 years of record
100 years	114.5 mm (4.5 in)	Longer than the 35 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 35 years of values from 1978 to 2012.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 99.8 mm (3.9 in) in 2011; 97.8 mm (3.9 in) in 2010; 84.8 mm (3.3 in) in 1986.

Download the Data

Data for El Chapin standing records by year: CSV or JSON. Field meanings are on the data page.
Data for El Chapin threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).